Door mechanism

Details Door mechanism Door mechanism

1989-10-18

1992-03-31

Favors, Edward G.

Furnaces

Fuel feeders

Chute

110418, 110293, F23K 316

Patent

active

050997696

ABSTRACT:
A door mechanism for supplying solid fuel to a store of a solid fuel burning appliance has a body defining a transfer chamber having an inlet and an outlet. An inner door is movably mounted to the body for closing the outlet thereof, the inner door normally closing off the outlet but being displaceable by solid fuel to an open position, for example against the influence of gravity. An outer door is mounted for closing off the inlet, and again is movable between a closed position and an open position. A displacement member is secured to the outer door. The displacement member is dimensioned so as to displace fuel from the transfer chamber through the outlet, as the outer door is closed.

REFERENCES:
patent: 794853 (1905-07-01), Cox
patent: 1152363 (1915-08-01), Weisberger
patent: 2394811 (1946-02-01), Rymer
patent: 2454400 (1948-11-01), Horman
patent: 4126119 (1978-11-01), Fike
patent: 4185567 (1980-01-01), Grossniklaus
patent: 4339998 (1982-07-01), Finch
patent: 4421040 (1983-12-01), Lindstrom
patent: 4442825 (1984-04-01), Waldau
patent: 4444538 (1984-04-01), Manley
patent: 4530289 (1985-07-01), Godbout
patent: 4606282 (1986-08-01), Steindal
patent: 4865016 (1989-12-01), Landry

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